how would you implement data exchange communication between two projects
Java Manager Interview Questions
30,867 java manager interview questions shared by candidates
The technical interviewer had me write some code to sort a simple number array.
Explain what inheritance is in Java
Program to reverse a string
Can you run java program without having JDK...?
Design patterns
First Round - Working of Hashmap, ArrayList Linked List, Java Basic questions Second Round - Coding Exercise - implement SecurityDataServices - Objective 1 1) SecurityServiceImpl - methods a)addSecurity(Security s) b)recordTick(long secID, Tick t), c)getPrice(Security s) d) getHistoricalPrice(Security S, TimeStamp asOfNow) 2)SecurityImpl - methods 1) getSecId() 2)getListTicks() 3)getCurrentPrice() 4)recordTick() 3) Tick Impl - methods 1) getPrice(), 2) getTimeStamp() Implement all these classes in 1.5 hr, Use multithreading, I used ConcurrentHashMap and CopyonwriteArraylist use atomic operations like putifAbsent() CodeReview questions - explain the flow of written code, explain java locks, write it using lambda expression, rewrite the code using locks 3rd round - behavioural questions - why do you want to join Sapient? extra activities apart from work? any technology that you follow?
asked core java questions. If a method is overloaded in a class in the following way public void fun(Object o){ } public void fun(ArrayList a){ } and is invoked in the following manner obj.fun(null) which method will be invoked.
Types of IOC container
Sum Array Puzzle Anagram find substring in particular string (All programs with a minimum complexity)
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